Home / 3,981.81-5,492.50-2,565.03

Finding the Fourth Proportional to 3,981.81, 5,492.50 and 2,565.03

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Solution

The fourth proportional to 3,981.81, 5,492.50 and 2,565.03 is: 3,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.81 : 5,492.50 = 2,565.03 : x
  2. Step 2: Convert to fraction form
    3,981.81/5,492.50 = 2,565.03/x
  3. Step 3: Cross multiply
    3,981.81x = 5,492.50 × 2,565.03
  4. Step 4: Simplify right side
    3,981.81x = 14,088,427.28
  5. Step 5: Solve for x
    x = 14,088,427.28/3,981.81
  6. Step 6: Final answer
    x = 3,538.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.